This service repair manual covers the CLARK CQ 20/25/30 D/L forklifts, part of the CQ230 model series. These industrial machines are engineered for demanding operational environments, offering robust performance and reliability. Their design prioritizes efficient material handling and operational longevity, making them a trusted choice for various industrial applications requiring dependable lifting and transport capabilities. This comprehensive English-language manual provides detailed guidance for maintenance, assembly, disassembly, servicing, repair, and troubleshooting. It includes extensive information on critical systems such as the diesel and LPG engines, cooling, fuel, air induction and exhaust, transaxle, electrical, brake, steering, and hydraulic systems, as well as uprights and chassis. With over 700 pages of content featuring diagrams, schemes, and real photo illustrations, this searchable and printable manual is an essential resource for ensuring the optimal performance and longevity of your CLARK forklift.